Package org.apache.commons.scxml.model

Examples of org.apache.commons.scxml.model.TransitionTarget

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   static void updateSCXML(final SCXML scxml) throws ModelException {
       // Watch case, slightly unfortunate naming ;-)
       String initialstate = scxml.getInitialstate();
       //we have to use getTargets() here since the initialState can be
       //an indirect descendant
       TransitionTarget initialTarget = (TransitionTarget) scxml.getTargets().
           get(initialstate);
       if (initialTarget == null) {
           // Where do we, where do we go?
           logAndThrowModelError(ERR_SCXML_NO_INIT, new Object[] {
               initialstate });
       }
       scxml.setInitialTarget(initialTarget);
       Map targets = scxml.getTargets();
       Map children = scxml.getChildren();
       Iterator i = children.keySet().iterator();
       while (i.hasNext()) {
           TransitionTarget tt = (TransitionTarget) children.get(i.next());
           if (tt instanceof State) {
               updateState((State) tt, targets);
           } else {
               updateParallel((Parallel) tt, targets);
           }
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            if (initialStates.size() == 0) {
                logAndThrowModelError(ERR_STATE_BAD_INIT,
                    new Object[] {getStateName(s)});
            } else {
                for (int i = 0; i < initialStates.size(); i++) {
                    TransitionTarget initialState = (TransitionTarget)
                        initialStates.get(i);
                    if (!SCXMLHelper.isDescendant(initialState, s)) {
                        logAndThrowModelError(ERR_STATE_BAD_INIT,
                            new Object[] {getStateName(s)});
                    }
                }
            }
        }
        List histories = s.getHistory();
        Iterator histIter = histories.iterator();
        while (histIter.hasNext()) {
            if (s.isSimple()) {
                logAndThrowModelError(ERR_HISTORY_SIMPLE_STATE,
                    new Object[] {getStateName(s)});
            }
            History h = (History) histIter.next();
            Transition historyTransition = h.getTransition();
            if (historyTransition == null) {
                // try to assign initial as default
                if (initialStates != null && initialStates.size() > 0) {
                    for (int i = 0; i < initialStates.size(); i++) {
                        if (initialStates.get(i) instanceof History) {
                            logAndThrowModelError(ERR_HISTORY_BAD_DEFAULT,
                                new Object[] {h.getId(), getStateName(s)});
                        }
                    }
                    historyTransition = new Transition();
                    historyTransition.getTargets().addAll(initialStates);
                    h.setTransition(historyTransition);
                } else {
                    logAndThrowModelError(ERR_HISTORY_NO_DEFAULT,
                        new Object[] {h.getId(), getStateName(s)});
                }
            }
            updateTransition(historyTransition, targets);
            List historyStates = historyTransition.getTargets();
            if (historyStates.size() == 0) {
                logAndThrowModelError(ERR_STATE_NO_HIST,
                    new Object[] {getStateName(s)});
            }
            for (int i = 0; i < historyStates.size(); i++) {
                TransitionTarget historyState = (TransitionTarget)
                    historyStates.get(i);
                if (!h.isDeep()) {
                    if (!c.containsValue(historyState)) {
                        logAndThrowModelError(ERR_STATE_BAD_SHALLOW_HIST,
                            new Object[] {getStateName(s)});
                    }
                } else {
                    if (!SCXMLHelper.isDescendant(historyState, s)) {
                        logAndThrowModelError(ERR_STATE_BAD_DEEP_HIST,
                            new Object[] {getStateName(s)});
                    }
                }
            }
        }
        List t = s.getTransitionsList();
        for (int i = 0; i < t.size(); i++) {
            Transition trn = (Transition) t.get(i);
            updateTransition(trn, targets);
        }
        Parallel p = s.getParallel(); //TODO: Remove in v1.0
        Invoke inv = s.getInvoke();
        if ((inv != null && p != null)
                || (inv != null && !c.isEmpty())
                || (p != null && !c.isEmpty())) {
            logAndThrowModelError(ERR_STATE_BAD_CONTENTS,
                new Object[] {getStateName(s)});
        }
        if (p != null) {
            updateParallel(p, targets);
        } else if (inv != null) {
            String ttype = inv.getTargettype();
            if (ttype == null || ttype.trim().length() == 0) {
                logAndThrowModelError(ERR_INVOKE_NO_TARGETTYPE,
                    new Object[] {getStateName(s)});
            }
            String src = inv.getSrc();
            boolean noSrc = (src == null || src.trim().length() == 0);
            String srcexpr = inv.getSrcexpr();
            boolean noSrcexpr = (srcexpr == null
                                 || srcexpr.trim().length() == 0);
            if (noSrc && noSrcexpr) {
                logAndThrowModelError(ERR_INVOKE_NO_SRC,
                    new Object[] {getStateName(s)});
            }
            if (!noSrc && !noSrcexpr) {
                logAndThrowModelError(ERR_INVOKE_AMBIGUOUS_SRC,
                    new Object[] {getStateName(s)});
            }
        } else {
            Iterator j = c.keySet().iterator();
            while (j.hasNext()) {
                TransitionTarget tt = (TransitionTarget) c.get(j.next());
                if (tt instanceof State) {
                    updateState((State) tt, targets);
                } else if (tt instanceof Parallel) {
                    updateParallel((Parallel) tt, targets);
                }
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        if (tts.size() == 0) {
            // 'next' is a space separated list of transition target IDs
            StringTokenizer ids = new StringTokenizer(next);
            while (ids.hasMoreTokens()) {
                String id = ids.nextToken();
                TransitionTarget tt = (TransitionTarget) targets.get(id);
                if (tt == null) {
                    logAndThrowModelError(ERR_TARGET_NOT_FOUND, new Object[] {
                        id });
                }
                tts.add(tt);
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     */
    private static boolean verifyTransitionTargets(final List tts) {
        if (tts.size() <= 1) { // No contention
            return true;
        }
        TransitionTarget lca = SCXMLHelper.getLCA((TransitionTarget)
            tts.get(0), (TransitionTarget) tts.get(1));
        if (lca == null || !(lca instanceof Parallel)) {
            return false; // Must have a Parallel LCA
        }
        Parallel p = (Parallel) lca;
        Set regions = new HashSet();
        for (int i = 0; i < tts.size(); i++) {
            TransitionTarget tt = (TransitionTarget) tts.get(i);
            while (tt.getParent() != p) {
                tt = tt.getParent();
            }
            if (!regions.add(tt)) {
                return false; // One per region
            }
        }
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        public final void end(final String namespace, final String name) {
            if (scxml == null) {
                scxml = (SCXML) getDigester()
                        .peek(getDigester().getCount() - 1);
            }
            TransitionTarget tt = (TransitionTarget) getDigester().peek();
            scxml.addTarget(tt);
        }
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                        s.addHistory(h);
                        parent.addTarget(h);
                    }
                    Iterator childIter = include.getChildren().values().iterator();
                    while (childIter.hasNext()) {
                        TransitionTarget tt = (TransitionTarget) childIter.next();
                        s.addChild(tt);
                        parent.addTarget(tt);
                        addTargets(parent, tt);
                    }
                    s.setInvoke(include.getInvoke());
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                parent.addTarget(h);
            }
            if (tt instanceof State) {
                Iterator childIter = ((State) tt).getChildren().values().iterator();
                while (childIter.hasNext()) {
                    TransitionTarget child = (TransitionTarget) childIter.next();
                    parent.addTarget(child);
                    addTargets(parent, child);
                }
            } else if (tt instanceof Parallel) {
                Iterator childIter = ((Parallel) tt).getChildren().iterator();
                while (childIter.hasNext()) {
                    TransitionTarget child = (TransitionTarget) childIter.next();
                    parent.addTarget(child);
                    addTargets(parent, child);
                }
            }
        }
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         */
        public final void begin(final String namespace, final String name,
                final Attributes attributes) {
            Finalize finalize = (Finalize) getDigester().peek();
            // state/invoke/finalize --> peek(2)
            TransitionTarget tt = (TransitionTarget) getDigester().peek(2);
            finalize.setParent(tt);
        }
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        return exec.getSCInstance().lookupContext(tt);
    }

    public static Context lookupContext(SCXMLExecutor exec,
            String id) {
        TransitionTarget tt = lookupTransitionTarget(exec, id);
        if (tt == null) {
            return null;
        }
        return exec.getSCInstance().lookupContext(tt);
    }
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        }
        scxmlRules.add(xp, new Rule() {
            // A generic version of setTopRule
            public void body(final String namespace, final String name,
                    final String text) throws Exception {
                TransitionTarget t = (TransitionTarget) getDigester().peek();
                TransitionTarget p = (TransitionTarget) getDigester().peek(
                        parent);
                // CHANGE - Moved parent property to TransitionTarget
                t.setParent(p);
            }
        });
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Related Classes of org.apache.commons.scxml.model.TransitionTarget

  • org.apache.commons.scxml.Builtin
  • org.apache.commons.scxml.BuiltinTest
  • org.apache.commons.scxml.env.LogUtils
  • org.apache.commons.scxml.env.LogUtilsTest
  • org.apache.commons.scxml.env.SimpleErrorReporter
  • org.apache.commons.scxml.io.ModelUpdater
  • org.apache.commons.scxml.io.SCXMLDigester
  • org.apache.commons.scxml.io.SCXMLDigester$DigestSrcAttributeRule
  • org.apache.commons.scxml.io.SCXMLDigester$UpdateFinalizeRule
  • org.apache.commons.scxml.io.SCXMLDigester$UpdateModelRule
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